The answer is 2. The major function of the nucleus is the storage of the cell’s genetic material and is the one responsible for DNA replication. That is why they contain chromosomes which are used in the process of transmitting genetic information.

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The answer is 2. A gene is a collection of information that defines or controls a trait. It is a part of DNA that translates a specific trait.

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The answer is 3. The nucleus is the main part of the cell because it is the control center. It has all the information regarding the cell including its ability to store DNA and make use of it when needed in reproduction.

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The answer is 2. In order to acquire cystic fibrosis, the child must be inheriting abnormal genes from each parent. Since the father already has two abnormal genes with cystic fibrosis, the mother who does not have the disease must be a carrier since a carrier has one normal and one abnormal gene.

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The answer is 4. DNA can be transferred from one organism to another by way of reproduction. When organisms reproduce, there is a process of transferring DNA from one to another to produce a certain trait.

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The answer is 1. A hereditary trait, usually in humans have polygenic inheritance meaning that a trait may be expressed using two or more genes in order to be noticed.

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The answer is 1. Since the nucleus is considered as the control center of a cell, it contains all the important parts of the cell as well as perform the important functions of it.

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